I am trying to subtract sequences MN_SEQ from Table C generated based on join with other tables.
Here is the problem.
Query 1 -
Select M_Seq from Table C, Table A, Table B where C.date_sk=A.MTH_END_DT
and B.Loan_seq=A.Loan_seq
Query 2 -
Select M_Seq from Table C, Table B where C.date_sk=B.ORIG_DT
I have to get difference between 2 M_SEQ generated from the result set of query 1 and Query 2.
Below is what i tried, but I am getting error.
select mn_seq -mn_seq from
((select mn_seq from Table C, Table A, Table B where B.MTH_END_DT=C.DATE_SK and B.LOAN_SEQ=A.LOAN_SEQ)a,
(select mn_seq from Table C , Table B where B.ORIG_DT=C.DATE_SK
)b)
T
Kindly provide inputs . I am not sure if this is the right way to do it. I tried just using "-" between queries but didnt work. Thanks!
Try this..
SELECT (SELECT mn_seq
FROM TABLE c, TABLE a, TABLE b
WHERE b.mth_end_dt = c.date_sk
AND b.loan_seq = a.loan_seq) -
(SELECT mn_seq FROM TABLE c, TABLE b WHERE b.orig_dt = c.date_sk)
FROM dual
I assume both the mn_seq are NUMBER and also your WHERE clause returns only one record in each of the inner queries.
Related
I’m using oracle. I have two table A and B
Table A has 8000 rows and 5 five columns
Table B has 5500 rows and same 5 columns
All of 5500 rows in table B are contained in Table A and they are the same
I have a query like
With t1 as (select distinct(id) from table A/B)
,T2 as (select a.id, c.value, d.value from Table A/B a
Join table c c on “conditions”
Join table d d on “conditions”
) select * from t2
So the query with Table A works excellent but with Table B it freezes for eternity.
Data types and other properties are equal in table A and table A.
Where should i look for the problem?
I tried to explain plan but differences only in row “PX PARTITION HASH JOIN-FILTER” in Table A and “PX BLOCK ITERATOR ADAPTIVE” in table B
I have table A and table B with different number of columns but both containing a column with IDs. Table A contains more complete list of IDs and table B contains some of the IDs from the table A.
I would like to return resulting table B with original information plus appended IDs that are missing in B but contained in A. For these appended rows, other columns should be blank while column with IDs in B should just contain missing ID values.
Simple solution UNION ALL, with NOT EXISTS:
select b.id, b.c1, ..., b.cn
from b
UNION ALL
select distinct a.id, null, ..., null -- should be same number of columns as in the above select
from a
where not exists (select 1 from b where b.id = a.id)
I think you described left join:
select *
from b left join
a
using (id)
I have 3 column In Table 1 in SQL A,B,C and User_Column in Table 2.
I want a user who is present in all three column of Table 1??? .
Experts please guide me I'm a beginner.
It seems you want an intersection of A, B, and C users:
select a as usr from table1
intersect
select b as usr from table1
intersect
select c as usr from table1;
Trying to explain my Question:
Say, Table A contains ID,Number,Location.
Table B contains Option 1,Option 2.
I want to write a single query that would select ID, Number & Option 1 from the Table A and Table B.
(At present I am doing something like:
SELECT ID FROM [A]
SELECT Option 1 FROM [B]
)
You do this:
SELECT A.ID, A.Number, B.Option1
FROM TableA as A, TableB as B
WHERE A.id = B.id;
This Part sets an alias for the table so that you don't have type in the full table name all the time:
TableA as A
TableB as B
This part is the relationship between table A and B.
WHERE A.id = B.id;
Consider reading SQL table relationships http://net.tutsplus.com/tutorials/databases/sql-for-beginners-part-3-database-relationships/
Here is what I needed:
I have:
Table A PT*,NAME,AGE
Table B PT*,COURSE,RESULT
Table C PT*,COURSE,RESULT,RANk
Wondering how could I UNION Table B and Table C and later Merge with Table A to get the output as below(Table D). PT is the PKey among all.
PT NAME AGE COURSE RESULT RANK
100 SLK 29 Test1 29 - result of merge between Table A and Table B
200 AAR 30 Test2 23 10 - result of merge between Table A and Table C
To get desirable output just perform a simple SQL SELECT query:
SELECT A.PT, A.NAME, A.AGE, B.COURSE, B.RESULT, C.RANK
FROM
A join B on A.PT=B.PT
join C ON A.PT = C.PT
Why you need COURSE, RESULT fields in table C, by the way, as they are already stored in table B?